baber/WOPTO huggingface dataset:
Patent CA-2133496-C (CA)
Inventor: KOVACS GREGORY J
IPC: H01S3/23
Filed: 1994-10-03
Granted: 1997-07-15
Abstract: The present invention is a novel multiple laser diode structure and method for using such structures to optically isolate the light from the different diodes. The novel structure comprises a submount on which the individual lasing elements are mounted and a back facet monitoring plate coupled to the submount. The back facet monitoring plate comprises a plurality of optically sensitive detectors that monitor the amount of laser light emanating from the back facet. Ideally, one detector should be mounted opposite a back facet for each lasing element. The submount is designed with an isolation bar that optically separates the light from individual lasing elements. The radiation thus detected by each detector emanates from the back facet of a single lasing element. The amount of back facet radiation captured by the detector is proportional to the amount of radiation emanating from the front facet of the lasing element. This information enables the system to individually monitor and subsequently control the spot power of the lasing element in a continuous closed loop fashion.
Patent CA-2133517-C (CA)
Inventor: FRIDAY ARTHUR F JR
IPC: G05B19/042
Filed: 1994-10-03
Granted: 1998-07-14
Abstract: A process is disclosed for checking communications that a controller receives from elements in an HVAC system.  The process includes storing the communications and thereafter checking each stored communication against a range of permitted values for that particular communication.  The thus checked communication is made available for use by the controller only if it is within the range of permitted values.  A count of times that a particular element does not comply with the check is maintained with a warning being generated in the event that the element continues to communicate unacceptable signal values.
Patent CA-2133748-C (CA)
Title: Enzyme products for use in the improvement of feed value and conservation of fibrous crops
Inventor: VIRKKI MARKKU
IPC: A23K3/03
Filed: 1993-04-13
Granted: 2008-06-17
Abstract: The present application discloses a method of fractionating cellulase material, the resulting fractions and a method of treating crops by applying such fractions to crops, alone or in combination with beneficial microorganisms.
Patent CA-2134878-C (CA)
Title: A system for measuring the torque applied to a threaded connection between sections of oilfield pipe
Inventor: HALL TERRY
IPC: G01L5/24
Filed: 1993-04-30
Granted: 2004-01-06
Abstract: A system for accurately determining the torque applied to threadable pipe members, the system applied in connection with a pair of threadable pipe members, such as oilfield tubular goods, to be threaded together, a torque wrench (24) having a first end secured to the end of one of the pipe members, and a second end forming an extendable handle portion (32), a pulling means (26), such as a cable secured to the handle portion (32) for pulling the handle (30) in the direction to impart rotational force on the pipe members to complete the connection, means (38) intermediate the end of the handle (32) and the pulling means (26), for recording the torque being applied to the pipe member by the torque wrench (24) in all instances as a 90 degree relationship be-tween the torque wrench (24) and the cable member (26), and means (36) for visually recording the force being applied to the threadable members (12).
Patent CA-2135989-C (CA)
Inventor: WEBSTER JON
IPC: B01F25/60
Filed: 1994-11-16
Granted: 1998-11-24
Abstract: A portable holding and mixing tank system for at least two dissimilar liquids includes a tank having an interior space and a dividing wall which establishes at least two fluid-isolated holding compartments within the tank interior space for respectively holding a respective one of the dissimilar liquids. A manifold assembly defines respective channels for the dissimilar liquids and for pressurizing fluid supplied from a source thereof. The liquid and pressurizing fluid channels are fluid-connected to each of the holding compartments. A pressurizing supply conduit fluid-connects the source of pressurizing fluid to pressurizing fluid channel, while liquid supply risers respectively fluid connect the dissimilar liquids contained in each of the holding compartments to the liquid channel defined by the manifold assembly. A liquid discharge port fluid-connects the liquid channel defined by the manifold assembly. As a result, the dissimilar liquids within each of the holding compartments are forcibly introduced by means of the pressurizing fluid therewithin into the liquid channel defined by the manifold assembly and are mixed with one another within the liquid channel prior to discharge through the discharge port.
Patent CA-2141748-C (CA)
Title: Energy conserving fluid flow distribution system with internal strainer
Inventor: HARRISON RICHARD H JR
IPC: F28F25/02
Filed: 1995-02-03
Granted: 1998-11-24
Abstract: A side feeding fluid distribution system is provided which is used for uniformly distributing a heat exchange fluid to an underlying structure. The distribution system comprises a distribution pan, a pre-distribution box, and a removable basket strainer housed within the pre-distribution box. The fluid transporting pre-distribution box is centrally located in resting relationship on top of the distribution pan. The pre-distribution box has a pair of uniquely configured converging sidewalls which allow portions of the flowstream to be incrementally stripped from the main flowstream as it flows towards the backwall of the pre-distribution box. The velocity energy of the tripped portion of flow is thereby conserved, and then advantageously used to create uniform water distribution throughout the distribution pan, and hence, to the nozzles attached in the bottom of the pan. The pre-distribution box sidewalls also form an internal chamber for receiving a removable in-line basket filter or strainer. The strainer removes any pipe scale or water system debris to ensure that the nozzles will not clog and cause non-uniform water distribution.
Patent CA-2142338-C (CA)
Title: Position location system
Inventor: BLADEN JOHN STUART
IPC: A61B5/06
Filed: 1993-08-16
Granted: 1999-11-30
Abstract: Methods and apparatus are provided for locating the position, preferably in three dimensions, of a sensor (7) by generating magnetic fields which are detected at the sensor (7). The magnetic fields are generated from a plurality of locations (1) and, in one embodiment of the invention, enable both the orientation and location of a single coil sensor (7) to be determined. The present invention thus finds application in many areas where the use of prior art sensors comprising two or more mutually perpendicular coils is inappropriate.
Patent CA-2143268-C (CA)
Title: Procede de separation du fluorure d'hydrogene et du difluoromethane
Inventor: GALLAND JEAN-MICHEL
IPC: C07C17/383
Filed: 1995-02-23
Granted: 2005-02-08
Abstract: L'invention concerne la séparation du fluorure d'hydrogène (HF) et du difluorométhane (F32) par distillation et/ou condensation fractionnée, en une ou plusieurs étapes. Le procédé selon l'invention comprend au moins une étape permettant d'obtenir un flux dont les teneurs en HF et F32 correspondent sensiblement à celles de la composition azéotropique, cette étape étant effectuée sous une pression choisie de façon telle que la pression partielle du mélange HF + F32 dudit flux (Pa en bars absolus) soit liée à la teneur en HF dudit mélange (x en pourcent poids) par la relation suivante:      Pa = 17 - 22,9(x+0,821)ln(x+0,608) + 56,6 [ln(x+0,608)]2.
Patent CA-2159038-C (CA)
Inventor: RAMAGE ROBERT
IPC: C07H21/00
Filed: 1994-03-29
Granted: 2003-02-04
Abstract: A protecting group of the formula (I): Ar - L - Y -, where Ar represents a substantially plane, fused ring system containing at least 4 aromatic rings; L represents a linker group containing at least one carbon atom which is capable of bonding to Ar and Y; and Y represents a specifically acid labile group.
Patent CA-2159159-C (CA)
Title: Secret-key enciphering method and arrangement therefor capable of preventing unfair acquirement of information
Inventor: SHIMADA MICHIO
IPC: H04L9/06
Filed: 1995-09-26
Granted: 2000-07-25
Abstract: ELT transformation circuits 101l to 10m are preliminarily supplied with ELT transformation parameters a i, b i, and p i (i = 1, 2, ..., m). When a plaintext of n bits long is supplied to the ELT transformation circuit 101l via an input terminal 104, the ELT transformation circuit 101l carries out ELT transformation on the plaintext by the use of ELT transformation parameters a l, b l, and p l  supplied from an input terminal 105l. An enciphering circuit 102l enciphers an n/2-bit input with reference to a cryptographic key K l  from an input terminal 106l. Supplied with two n-bit inputs, an exclusive-OR circuit 103l carries out an exclusive-OR operation between every corresponding bits of the same order. Subsequently, similar operation as mentioned above is repeated. The ELT transformation circuit 101m at a final stage delivers a ciphertext to an output terminal 107.
Patent CA-2159555-C (CA)
Title: Use of a chlorine canal associated agonist material for the treatment of wrinkles
Inventor: DE LACHARRIERE OLIVIER
IPC: A61K8/00
Filed: 1995-09-29
Granted: 2001-07-31
Abstract: Use of at least one substance (I) which is an agonist for at least one receptor associated with a chloride channel in cutaneous tissue, (other than glycine and gamma-aminobutyric acid), to relax and/or slacken cutaneous tissue and/or for mfr. of a topical cosmetic or dermatological compsn., is new. (I) is pref. serine, taurine, beta-alanine, N-(benzyloxycarbonyl) glycine (Z-glycine), isoguvacine, isonipecotic acid, 4,5,6,7-tetrahydroisoxazolo-(5,4-c) pyridin-3(2H)-one, benzodiazepines, steroids, and barbiturates.
Patent CA-2159606-C (CA)
Title: Skin care composition containing emulsified petroleum jelly
Inventor: ZIEGLER PHILIP DALE
IPC: A61K8/00
Filed: 1994-06-04
Granted: 2005-08-23
Abstract: A cosmetic composition is provided having exceptional emulsion stability. The composition comprises water, petroleum jelly, a sterol, a phosphatide and a C16-C22 alkanoic triglyceride.
Patent CA-2160832-C (CA)
Inventor: KROFCHAK DAVID
IPC: B09B3/00
Filed: 1995-10-18
Granted: 2002-01-01
Abstract: A method of treating steel mill waste containing iron oxides and silica includes reacting the steel mill waste with an alkali aqueous solution in an amount sufficient to raise the pH to at least about 7 to solubilize silica to form soluble silicate compounds and silica gels and thereby produce a chemically reactive mixture. The mixture is reacted with an alkaline silicic compound to produce a solid, stable, non-polluting material.
Patent CA-2161578-C (CA)
Title: Reactant for thermochemical systems and thermochemical system designed for such a reactant
Inventor: GOETZ VINCENT
IPC: F25B17/08
Filed: 1995-10-27
Granted: 2000-02-15
Abstract: In a reagent for thermochemical systems, comprising a compressed support and an agent which is active w.r.t. a gas, the active agent consists of salts distributed throughout the support. The support consists of recompressed expanded graphite of density 0.02-0.8. Also claimed is a thermochemical system which produces cold and/or heat by solid-gas chemical reaction and which has a reactor contg. the above reagent, the reactor communicating with a gas-retaining chamber in a first operating phase and with a gas-liberating chamber in a second operating phase.
Patent CA-2161611-C (CA)
Inventor: KUKINO SATORU
IPC: C04B35/583
Filed: 1995-10-27
Granted: 1999-01-05
Abstract: Hard composite material for tools, comprising a substrate of CBN sintered body containing more than 20 % by volume of cubic boron nitride or diamond sintered body containing more than 40 % by volume of diamond. The substrate has at least one layer of hard heat-resisting film consisting mainly of Ti, Al and at least one element selected from a group consisting C, N and O on a portion or portions of said substrate where cutting participate. Improved in strength of base material, wear-resistance and oxidation-resistance, less reactive with iron and showing longer tool life comparing to known cutting tools and usable in wider applications such as hardened steel, cast ion and simultaneous cutting of cast ion and aluminum alloy.
Patent CA-2167062-C (CA)
Inventor: DRILLER HUBERT
IPC: G01R1/073
Filed: 1994-07-05
Granted: 2000-02-15
Abstract: The invention concerns an adapter designed to adapt the regular contact array of an electrical test device for circuit boards to the irregular configuration of the contact points on one or both sides of the circuit board under test. The adapter has needle-like test pins which rest at one end against the regularly arranged contacts in the contact bank of the test device and extend through channels in the adapter, the other ends of the pins contacting the usually irregularly distributed contact points of the circuit board under test. The top surface of the adapter rests against the circuit-board surface contacted and the bottom surface rests against the contact bank of the test device. In order to provide an adapter which is inexpensive to manufacture and can be used for both sides of circuit boards with a very high contact density, the invention proposes that, in the zone between the bottom surface and the top surface, the adapter comprises an essentially incompressible low-density solid body with a high resistance to crushing and through which the test-pin channels pass. Suitable for use in such an adapter are smooth "music wire" type test pins without surface features, the pins having a head produced by simply bending the end of the pin round to form a circle or hook.
Patent CA-2167655-C (CA)
Inventor: WRIGHT RAYMOND L
IPC: E21D20/02
Filed: 1996-01-19
Granted: 1998-12-22
Abstract: A reinforcing and support system and method of installation thereof including both a mechanical expansion anchor on the distal end of an elongated bolt and a resin grouting mix installed in a blind drill hole in a mine roof, or the like.  A pair of elongated leg members, fixed with respect to the shell, extend into the annular space surrounding the bolt below the shell for a distance about as great as the axial length of the shell.  Upon advance of the bolt, carrying the expansion anchor and leg members, into the drill hole to break a cartridge containing the initially flowable components of the grouting material, the bolt is rotated to effect expansion of the anchor and tensioning of the bolt. Mixing of the components in the annular space surrounding the bolt below the anchor as the bolt is rotated is enhanced by hydraulic turbulence produced by flow of the components about the leg members.  A support nut may be installed on the bolt below the anchor, and the leg members may be fixedly attached to one another near their terminal ends.
Patent CA-2169553-C (CA)
Title: System and method for key distribution using quantum cryptography
Inventor: TOWNSEND PAUL DAVID
IPC: G02F1/139
Filed: 1994-09-08
Granted: 1999-12-07
Abstract: A method of communication based on quantum cryptography is modified to in-clude an initial step of outputting from, e.g., a transmitter (T), a single-photon signal, which may be unmodulated. A receiver (R1-R3) then randomly selects one of a plural-ity of encryption alphabets corresponding to different, non-commuting quantum mechan-ical operators. The receiver modulates the single-photon signal with the selected op-erator and returns the signal to the trans-mitter. The transmitter in turn randomly selects a quantum mechanical operator and uses that operator in detecting the returned signal modulated by the receiver. Alterna-tively, the transmitter may randomly select one of a plurality of encryption alphabets and use that encryption alphabet in modulating the signal. The signal is then further mod-ulated at the receiver using a predetermined encryption alphabet. When the signal is re-ceived back at the transmitter, it is detected using the same quantum mechanical operator as was initially used to modulate it. Com-parison is made of the states of the single-photon signals as transmitted and received to detect the presence of any eavesdropper.
Patent CA-2170010-C (CA)
Title: Lift truck with inertial dampener
Inventor: MCCORMICK EDWARD JOSEPH
IPC: F16F7/08
Filed: 1996-02-21
Granted: 2001-09-11
Abstract: A lift truck 100 has an inertial damper 150 coupled between the base frame 116 and a A-frame holding a suspended wheel.  The damper has a slider plate 170 frictionally engaged by friction pads 161, 169 on outer plate 160 and friction pads 181, 189 on the other outer plate 180.  The outer plates 160, 180 are spring biased against slider plate 170 by belville washers 162, 182 or a coil spring 210.
Patent CA-2175102-C (CA)
Inventor: PHAM PETE PHONG
IPC: A61B17/12
Filed: 1996-04-26
Granted: 2000-02-22
Abstract: This invention is an apparatus for endovascular occlusion through the formation of thrombi in arteries, veins, aneurysms, vascular malformations, and arteriovenous fistulas.  In particular, it deals with an improved sacrificial link between an endovascular device which is introduced to and is intended to remain at the desired thrombus formation site and the device used to introduce the device.  The invention further includes a method for introduction of the device and its electrolytic separation.
Patent CA-2178234-C (CA)
Inventor: VIGIL DENNIS M
IPC: A61F2/958
Filed: 1996-06-05
Granted: 2001-08-28
Abstract: A device for injecting medication into a vessel wall includes an inflatable balloon mounted on a catheter Additionally, a plurality of tubular fluid passageways are longitudinally mounted on the balloon, and a plurality of injectors are mounted on each tubular passageway and in fluid communication therewith. During use of the device, the balloon is first positioned in a vessel. The balloon is then inflated to embed the injectors into the vessel wall. Next, a fluid medicament is introduced through each of the fluid passageways for further infusion through the passageways and through the injectors into the vessel wall.
Patent CA-2187693-C (CA)
Inventor: JOHNSON JAMES FLOYD
IPC: B23P13/04
Filed: 1996-10-11
Granted: 2000-08-22
Abstract: This invention relates to a hand-carriable anvil and method of making same.  A solid-steel anvil of symmetrical configuration, having a top head, depending intermediate web and base, and with the anvil being of light weight that a person can manipulatively grasp the anvil's top head with one hand to easily carry the anvil with his grasping hand, is produced by the method of providing a rectilinear elongated section, appropriately disposing the elongated section preparatory to successive cross-cuttings of the section, and cross-cutting successive lengths from the section to thereby provide a plurality of separate anvils.
Patent CA-2195598-C (CA)
Title: Glass fiber laser system using u-doped crystal q-switch
Inventor: STULTZ ROBERT D
IPC: H01S3/16
Filed: 1997-01-21
Granted: 2001-05-29
Abstract: A glass fiber laser system includes a laser resonator cavity having a resonant path and an erbium-doped glass fiber lasing element with an output of from about 1.5 to about 1.6 micrometers within the laser resonator cavity. A light source directed into an input end of the glass fiber lasing element optically pumps the lasing element to emit light. A passive Q-switch lies along the resonant path within the laser resonator cavity. The Q-switch is formed of a host material having a concentration of uranium ions therein, so as to be a saturable absorber of the light emitted by the lasing element. The Q-switch is preferably a uranium-doped fluoride crystal such as U:CaF2, U:SrF2, or U:BaF2.
Patent CA-2196993-C (CA)
Title: Improved non-chromated oxide coating for aluminum substrates
Inventor: SCHRIEVER MATTHIAS P
IPC: C23C22/48
Filed: 1995-08-09
Granted: 2007-02-27
Abstract: An improved process that is commercially practical for forming an oxide film cobalt conversion coating exhibiting corrosion resistance and paint adhesion properties on an aluminum or aluminum alloy substrate for use in aircraft/aerospace applications (for example, an aluminum or aluminum alloy commercial airplane part), the process comprising the steps of: (a) providing an oxide film forming cobalt conversion solution comprising an aqueous reaction solution prepared by reacting the following starting materials: (1) a cobalt-II salt; (2) an ammonium salt; (3) one or more inorganic complexing agents selected from a soluble metal carboxylate, a soluble metal nitrite, or ammonia; (4) a water soluble amine; and (5) an oxidizing agent; and (b) contacting the substrate with the aqueous reaction solution for a sufficient amount of time to oxidize the surface of the substrate, whereby the oxide film cobalt conversion coating is formed, thereby imparting corrosion resistance and paint adhesion properties to the substrat e. A similar commercially practical process for aluminum or aluminum alloy substrates for use in non-aircraft/aerospace applications (fo r example, an aluminum or aluminum alloy marine hardware part) employs the above steps, but does not include the ammonium salt in the starting materials.
Patent CA-2200428-C (CA)
Inventor: COVEZZI MASSIMO
IPC: C08F2/34
Filed: 1996-07-17
Granted: 2008-03-25
Abstract: Process for gas-phase polymerization carried out in two interconnected polymerization zones, to which one or more .alpha.--olefins CH2=CHR are fed in the presence of catalyst under reaction conditions and from which the polymer product is discharged. The process is characterized in that the growing polymer flows through a first polymerization zone under fast fluidization conditions, leaves said first zone and enters a second polymerization zone through which it flows in a densified form under the action of gravity, leaves said second zone and is reintroduced into the first polymerization zone, thus establishing a circulation of polymer around the two polymerization zones. The novel process allows olefins to be polymerized in the gas phase with high productivity per unit volume of the reactor without incurring the problems of the fluidized-bed technologies of the known state of the art.
Patent CA-2204200-C (CA)
Title: Phenyl alkyl ketone substituted by cyclic amine and a process for the preparation thereof
Inventor: LUISOLI RETO
IPC: C07D295/12
Filed: 1997-05-01
Granted: 2007-04-10
Abstract: A novel process for the preparation of compounds of formula I   by aminolysis of a p-halophenyl alkyl ketone of formula II   with a cyclic amine of formula III   in water at a temperature of at least 130°C, in which formulae X is a halogen atom and R1, R2 and R3 are as claimed in claim 1, as well as the novel compounds of formula I and their use for the preparation of photoinitiators for the photopolymerisation of ethylenically unsaturated compounds.
Patent CA-2208199-C (CA)
Inventor: NICKOLSON VICTOR JOHANNES
IPC: A61P25/24
Filed: 1997-06-18
Granted: 2006-10-24
Abstract: The invention relates to a pharmaceutical composition comprising mirtazapine, a selective serotonin reuptake inhibitor (SSRI) and pharmaceutically acceptable auxiliaries. In particular the SSRI is selected from fluoxetine, fluvoxamine, citalopram, cericlamine, femoxetine, sertraline, paroxetine, ifoxetine, cyanodothiepin and litoxetine. The composition which can be used to treat depressant patients has less side effects than treatment of the patients with mirtazapine or the SSRI alone.
Patent CA-2209968-C (CA)
Inventor: LANTZ ANDRE
IPC: C07B61/00
Filed: 1997-07-15
Granted: 2007-07-03
Abstract: L'invention a pour objet la fabrication du 1,1,1--trifluoroéthane par fluoration du 1-chloro-l,1--difluoroéthane avec de l'acide fluorhydrique anhydre. La réaction est réalisée en phase liquide et en présence d'un catalyseur de fluoration. Le 1,1,1-trifluoroéthane est principalement destiné en mélange avec d'autres HFC, à remplacer le F22 (chlorodifluorométhane) et le F502 (mélange azéotropique de F22 et de chloropentafluoroéthane) dans le domaine de la réfrigération, de l'air conditionné et autres applications.